I had problem sending mail from Mutt (openmailbox.org)
the solution was to add a extra «s» to the word smtps:
set smtp_url = «smtps://correo@openmailbox.org@openmailbox.org:465″
This my ~/.muttrc file, it works fine.
set config_charset=»utf-8″
set locale=»de_CH»
set charset=»utf-8″
set send_charset=»us-ascii:iso-8859-15:utf-8″
set from = «lreyna@openmailbox.org»;
set realname = «Username»
set imap_user = «user@openmailbox.org»
set imap_pass = «pass»;
set ssl_starttls = «yes»
set ssl_force_tls = «yes»
set folder = «imaps://imap.openmailbox.org:993»;
set spoolfile = «+INBOX»;
set postponed = «+[opmbx]/Drafts»;
set header_cache = ~/.mutt/cache/headers;
set message_cachedir = ~/.mutt/cache/bodies;
set certificate_file = ~/.mutt/certificates;
set smtp_url = «smtps://user@openmailbox.org@openmailbox.org:465»
set smtp_pass= «pass»;
set from = «user@openmailbox.org»;
set smtp_authenticators=»plain»
set editor=»vim +11″
# some colors
color header yellow default Subject:
color header cyan default .
color body brightyellow default [_a-z\.\$A-Z0-9-]+@[a-zA-Z0-9\./\-]+
color body yellow default (http|ftp)://[_a-zA-Z0-9\./~\-]+
color quoted green default
color signature green default
color indicator yellow blue
color attachment yellow default
color tree red default
color indicator black cyan
color status yellow blue
color tilde blue default
color normal default default